b"Aerospace | Engineer Innovationneeds to be shipped to Cannes forSCADAS hardware fitted with a acoustic qualification testing, leadingmultiple inputs, multiple outputs to additional costs and delays. With the(MIMO) controller and combined with help of Siemens PLM SoftwareSimcenter Testlab software. It requires engineers, the team explored a newthe measure of 16 microphones DFAX method that would permitpositioned around the specimen, on-site qualification testing ofanalyzes their response and corrects components. Thunder is the name ofdrives. The corrected drive values are the project, apropos for a project thatreinserted in the loudspeakers to generates a 147 dB sound field in ancreate an homogenous acoustic field.International Organization for Standardization 9 (ISO9) clean room.Simcenter SCADAS hardware provides the adequate voltage output. Using a The objective of the test campaign is toclosed-loop algorithm, the solution reproduce the acoustical environmentensures that the output matches the that a communication satellite isreference profile drive. The method subjected to when placed in the fairingallowed the team to successfully of a satellite launcher. The test setup isqualify the reflector shell of an antenna designed to generate the high acousticsubsystem demonstrator. In the second levels that excite the specimen duringphase, the team performed takeoff. The setup is comprises 96qualification tests on the mid-sized loudspeakers, stacked in 12 columnsplatform of a Global Star second and adequately positioned in a circulargeneration (GB2) spacecraft mockup. configuration, and 96 amplifiers thatThe full qualification sequence was deliver the required high power of 4x5realized according to thekilowatts (kW). The specimen beingmulti-launcher's requirements.tested is placed at the center of the five-meter cylinder of loudspeakerThis phase helped us validate that the columns. The challenge is to reproducetesting method is suited for a uniform diffuse acoustic field aroundqualification of spacecraft from the specimen. In the described test,constellation production lines, says the team evaluates the behavior of theFabris. With this method, we are able specimen, making sure that it isto conduct up 25 test runs within a test equivalent to the one specimen placedsession. It is a very efficient way of in an acoustic reverberant room. testing newly-designed hardware. It will allow us to explore more variants Christophe Fabris, Project Leader atwith the possibility of performing Thales Alenia Space explains: Siemensimmediate validation in the lab. nbrings its expertize to solve the complex challenge of generating an homogenous sound field around the test item. The solution uses SimcenterThe project delivered the unmatched performance of generating a 147 decibels direct sound field.Christophe Fabris Project LeaderAntenna Mechanical Analysis Thales Alenia Space15"